Murillo, F. J., C. Martínez-Garrido, and R. Graña. “School Segregation by Socioeconomic Level in Primary Education in Latin America and the Caribbean”. REICE. Ibero-American Journal on Quality, Effectiveness and Change in Education, vol. 21, no. 1, Jan. 2023, pp. 87-117, doi:10.15366/reice2023.21.1.005.